NZ330724A - Chirped optical fibre grating with variable apodisation - Google Patents

Chirped optical fibre grating with variable apodisation

Info

Publication number
NZ330724A
NZ330724A NZ33072498A NZ33072498A NZ330724A NZ 330724 A NZ330724 A NZ 330724A NZ 33072498 A NZ33072498 A NZ 33072498A NZ 33072498 A NZ33072498 A NZ 33072498A NZ 330724 A NZ330724 A NZ 330724A
Authority
NZ
New Zealand
Prior art keywords
grating
apodisation
response
optical
optical fibre
Prior art date
Application number
NZ33072498A
Inventor
Richard Ian Laming
Michael Kevan Durkin
Valeria Gusmeroli
Original Assignee
Pirelli Cavi E Sistemi Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pirelli Cavi E Sistemi Spa filed Critical Pirelli Cavi E Sistemi Spa
Publication of NZ330724A publication Critical patent/NZ330724A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/0208—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response
    • G02B6/02085—Refractive index modulation gratings, e.g. Bragg gratings characterised by their structure, wavelength response characterised by the grating profile, e.g. chirped, apodised, tilted, helical
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G02B6/29317—Light guides of the optical fibre type
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/29392—Controlling dispersion
    • G02B6/29394—Compensating wavelength dispersion

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Optical Communication System (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

A chirped optical fibre grating has a predetermined desired wavelength-dependent response across an operational bandwidth. The grating is formed by apodising it so that the degree of apodisation varies along the grating to provide a degree of loss at a given longitudinal position which, when combined with the response of the chirped grating before apodisation gives the desired response at the optical wavelength reflected at that longitudinal position along the grating. The grating may be incorporated into an optical system which includes an optical processing element having a wavelength-dependent response connected to the grating. The combination of the apodised grating and the response of the optical element provides a desired wavelength-dependent response.
NZ33072498A 1997-06-18 1998-06-18 Chirped optical fibre grating with variable apodisation NZ330724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9712822.7A GB9712822D0 (en) 1997-06-18 1997-06-18 Optical device

Publications (1)

Publication Number Publication Date
NZ330724A true NZ330724A (en) 2000-05-26

Family

ID=10814493

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ33072498A NZ330724A (en) 1997-06-18 1998-06-18 Chirped optical fibre grating with variable apodisation

Country Status (3)

Country Link
AR (1) AR015895A1 (en)
GB (2) GB9712822D0 (en)
NZ (1) NZ330724A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008282044A (en) * 2008-07-22 2008-11-20 Furukawa Electric Co Ltd:The Fiber bragg grating element

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9509874D0 (en) * 1995-05-16 1995-07-12 Univ Southampton Optical waveguide grating

Also Published As

Publication number Publication date
GB2327130A (en) 1999-01-13
AR015895A1 (en) 2001-05-30
GB9713939D0 (en) 1997-09-03
GB9712822D0 (en) 1997-08-20

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